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Rapid advances in computer technology allow computer screens to be
filled with complex visual information at near real time
rates. Simulations that once required supercomputers are now commonly
run on desktop workstations. However, these advances have done little
to help people understand the meaning of their data. The lack of
understanding stems from the fact that machines process data in
numerical form, while humans more easily comprehend visual data. We
rely on graphs and charts to attain information and insight. The
research of Professor Gooch, combines computer graphics techniques for
creating artistic imagery with the evaluation methods of perceptual
psychology in order to enhance the communication capability of
computer generated imagery.
Interactive Illustrations for Visualization
In scientific and technical communities, the art of illustration has
evolved to enhance visual communication. Professor Gooch seeks to
develop interactive illustrations as a step toward optimal data
visualization. Previous work of Professor Gooch, in computer generated
technical and facial illustrations, demonstrates examples of effective
illustration techniques and provides a methodology that will
generalize to a broader class of problems. This iterative two-part
process consists of using NPR techniques to enhance the presentation
of important data features, then conducting perceptual studies to
evaluate the effectiveness of the resulting visualization. The
strength of this proposal lies in the synergy achieved in the tight
coupling of the two research areas. The ability to measure the
communication content of a visualization technique through
task-centric evaluation, means that empirical methods can be used to
establish principles and validate methods.
Perceptually Optimized Displays for Handheld Devices
Left) An image containing three areas of importance,
the two boys, and the ball. Center) The source image retargeted to
fit a PDA display. Right) The source image retargeted to fit a cell
phone display.
Computers are becoming faster, smaller and more interconnected
creating a shift in their primary function from computation to
communication. Digital cameras and camcorders are making high-quality
image acquisition ubiquitous. Advances in display technology allow a
range of deployments, from high-definition wall displays to miniature
embedded screens. As communication devices and viewing situations
become more plentiful, we need imagery that facilitates visual
communication across a wide range of display devices. In addition,
producing effective and expressive visual content currently requires
considerable artistic skill and can consume days. The work of
Professor Gooch introduces techniques for automatically
retargeting images and animations, that is, for adapting them
for display at different sizes and aspect ratios while preserving the
recognizability of important image features. This research combines
concepts and methods from visual art, perceptual psychology,
information processing, and cognitive science to facilitate a viewer
in understanding and interpreting computer imagery.
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